USB APEX with AIDL implementation

The previous USB APEX was bundling HIDL 1.0 default implemetation.
Migrating the USB APEX to use AIDL implementation.

Bug: 227791019
Test: tbd
Change-Id: I99aa16fa36215ff296f8194717381efdcf3e8ed8
diff --git a/usb/apex/file_contexts b/usb/apex/file_contexts
new file mode 100644
index 0000000..f223a56
--- /dev/null
+++ b/usb/apex/file_contexts
@@ -0,0 +1,5 @@
+(/.*)?                                         u:object_r:vendor_file:s0
+# Permission XMLs
+/etc/permissions(/.*)?                         u:object_r:vendor_configs_file:s0
+# binary
+/bin/hw/android\.hardware\.usb-service\.example        u:object_r:hal_usb_default_exec:s0
\ No newline at end of file